Google Container-Optimized OS (COS) cos-105 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Google Container-Optimized OS (COS) cos-105 reached end of life on 1 Apr 2025. It no longer receives security fixes.
Support timeline
Official dates from the Google Container-Optimized OS (COS) release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 3 Apr 2023 | — |
| End of life | 1 Apr 2025 | 1.4 years ago |
| Latest release | cos-105-17412-535-98 · 31 Mar 2025 | final |
Where to go from cos-105
Recommended target: Google Container-Optimized OS (COS) cos-129 (supported until 1 Mar 2028).
The newest actively supported branch is Google Container-Optimized OS (COS) cos-129 (latest release cos-129-19506-299-82).
Frequently asked questions
Is Google Container-Optimized OS (COS) cos-105 still safe to use?
Google Container-Optimized OS (COS) cos-105 reached end of life on 1 Apr 2025, 495 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Google Container-Optimized OS (COS) cos-105?
Yes — the final release (cos-105-17412-535-98) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Google Container-Optimized OS (COS) cos-105 to?
Upgrade to Google Container-Optimized OS (COS) cos-129, the newest actively supported branch (supported until 1 Mar 2028).